Adjustable stool



(No Model.)

I -J. PURSELL.

ADJUSTABLE STOOL, TABLE, &0.

P atentedlJune 6, 1882 WWW/M "UNITED STATES PATENT OFFICE.

JOHN PURSELL, OF NEW HAVEN, CONNECTICUT.

AIDJUSTABLE STOOL, TABLE, &0.

SPECIFICATION formng part of LttersPatent No. 259,208, dated June 6, 1882.

Application filed December S, 1881'. (No model.)

To all whom it may concem Be it known that I, JOHN PURsELL,of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in Adjustable Stools, Tables, and like Articles and I do hereby declare the followlug, when takenin connection with the accopaying drawings and the letters ot' reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-= Fi gure 1, a perspective View Fig. 2, a transverse section; Fig. 3, a modification.

This in vention relates to a device for adjust ing the elevation of the seat ot' astool, top of a table, and like purposes, applieable to pianostools, drawing-tables, and writing-desks; and the invention consists in the Construction, as hereinafter described, and more particularly recited in the claim.

As represented in the drawings, the invention is shown as applied to a table, in which- A represents the posts or supports, which may be of any desirable shape or style, and adapted to the purpose for which the thing is intended to be used.

B is the top. To the under side of this top vertical rods C are hinged. These rods eX- tend downward, and are connected at each side by rundles or longitudinal rods D. The verticalrods are movable up and down through guides a a, or other suitable guides which will support them in their vertical position, and yet allow a certain amount of play thereto.

On the legs or supports, and in line with each end of the rundles D, is a plate, E, constructed with several notches, b, more or less in number, as seen in Fig. 2, and into which the ends of the rundles will rest. Connecting these severalnotchesisagroove through which the ends of the rundle may be moved up and down from one notch to another. A spring is applied, tending to draw the two rods C C toward each other. This is best done by an elastic band, F, extending from the ruudle on one side to the rundle on the opposite side. This spring serves to hold the two rundles in their respective notches, but yet permit them to be drawn from their notches outward, to be raised or lowered from one notch to another.

In Fig. 2 the top is represented as in its lowest position. It' desired to raise the top and retain its same horizontal position, simply lift the top. The rundles will slip from one notch through the groove into the next above, and so on until the required elevation is attained say as seen in Fig. 1. If, however, an inclination is required'as to the line d d, Fig; 2, raise one side and then t'asten the other, or without the other, as the case may bc-that is, say, for instance, one edge moved up one notch, the opposite edge two notches, or, vice versa, either edge may be elevated and the opposite edge depressed. To drop the top take hold of the rundles D and draw them from the notches in which they rest, and hold them separated while the' rundles pass 'down through the grooves to the required notch.

The vertical rods 0 C are hiuged to the top to permit the movement of the lower ends from the notches into the grooves for such adjustment. The same construction applies for the stool, B simply representng the seat which is thus made adjustable. This is peculiarly adapted to stools for pianos and organs, whereby not only may the elevation of the seat be adjusted, but it may be inclined to suit the performer. These notched plates and the working of the rundles therein are shown in an invention for improvement in adjustable chairs invented by me,'and for which application for Letters Patent was filed October 11, 1881. Hence in this application I do' not broadly claim such notched or grooved plates for the purpose of adjusting the elevatiou of the seat.

While it is desirable that the vertical rods should be provided with a spring which will draw them into the notches on their respective sides, such spring is not essential.

While I prefer to attach the vertical rods-to the rundles D, the rods may extend down near to their respective notched grooved plates, with a stud thereon to work in said notched grooves,

as seen in Fg. 3, the same as do the ends of the rundles. I therefore do not wish to limit myself to the employmeut of the :rundles as a means for engaging the Vertical rods G to their respective notched plates.`

I am aware that tops of tables and like ar-` ticles have been adjusted to difi'erent elevations and secured by means of pawls and ratch IOC ets. Such Construction I do not claim, my inguides in the supports, with a stud or projecventiou being limited to the notched groove tion from the said 'ods into said notched Whereby the hinged pawlis avoided,the groove groovos, which work up and down through the itselfaiding in bringing the parts into their grooves, but engage with the notches, sub- 5 looking or supported condition; but stantially as and i'or the purpose described.

What I do claim is-- The combination of the notchel grooved JOHN PURSELL' piates E on the supports, the top B, and the Witnesses: vertical rods C C, linged to the under side of J 011N E. EARLE, IO the said top, and extending down through LILLIAN D. ROGERS. 

